Iozone: Performance Test of File I/O Version $Revision: 3.483 $ Compiled for 64 bit mode. Build: linux-AMD64 Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins Al Slater, Scott Rhine, Mike Wisner, Ken Goss Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR, Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner, Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root, Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer, Vangel Bojaxhi, Ben England, Vikentsi Lapa, Alexey Skidanov, Sudhir Kumar. Run began: Thu May 1 11:13:59 2025 Auto Mode Machine = Linux oleg444-client.virtnet 3.10.0-7.9-debug #1 SMP Sat Mar 26 23:2 Excel chart generation enabled Excel chart generation enabled Verify Mode. Pattern dbdbdbdb Performance measurements are invalid in this mode. Using maximum file size of 102400 kilobytes. Using Maximum Record Size 512 kB Command line used: iozone -a -M -R -V 0xab -g 100M -q 512k -i0 -i1 -f /mnt/lustre/d4.lustre-rsync-test/d0.iozone-oleg444-client.virtnet/iozone-file Output is in kBytes/sec Time Resolution = 0.000001 seconds. Processor cache size set to 1024 kBytes. Processor cache line size set to 32 bytes. File stride size set to 17 * record size. random random bkwd record stride kB reclen write rewrite read reread read write read rewrite read fwrite frewrite fread freread 64 4 18296 34651 344233 315136 64 8 29727 58244 404998 512471 64 16 25661 79706 901377 1279447 64 32 38904 125742 1518251 1392258 64 64 38365 178266 1947927 1017549 128 4 18585 31888 450846 367768 128 8 29270 50730 809997 687585 128 16 48945 107571 948860 848397 128 32 64382 142526 1471662 1391557 128 64 58261 191958 1155043 1732927 128 128 72307 151838 1172704 2248149 256 4 26972 30425 453858 424604 256 8 33591 57487 686182 930608 256 16 73228 113878 812329 999940 256 32 66929 86831 1506359 771473 256 64 56450 90459 903970 1292410 256 128 76762 167411 1049800 1376935 256 256 79922 229392 1817419 1525622 512 4 30330 27735 460852 526756 512 8 45450 48990 566348 694797 512 16 61017 90841 1316016 1267097 512 32 96274 160802 1337324 1002183 512 64 117917 210356 1801873 1931527 512 128 121472 238455 1463057 1164070 512 256 138156 180463 1179413 2081286 512 512 158219 289114 2339802 2317080 1024 4 27526 29329 489242 312002 1024 8 41561 54674 642400 906339 1024 16 62381 84182 883591 1080275 1024 32 110655 143578 1211964 1563622 1024 64 119821 214311 1395010 1065535 1024 128 175098 247579 1189476 1633188 1024 256 176887 219177 1992279 1896395 1024 512 186253 215126 2011877 2150918 2048 4 30404 28343 445401 385323 2048 8 49600 51562 812071 684904 2048 16 66634 77522 616835 535271 2048 32 111540 143278 1152577 605188 2048 64 143335 164470 1481839 620041 2048 128 147242 234429 1435050 1485169 2048 256 170115 228724 873777 1754908 2048 512 111232 167331 807643 916767 4096 4 31395 28282 393169 441530 4096 8 54130 42569 644120 827953 4096 16 77637 90325 978976 901839 4096 32 107746 107332 1304390 1106750 4096 64 105545 172369 1414352 1142521 4096 128 176582 129342 712833 757964 4096 256 181592 209383 1477100 1553220 4096 512 187838 221128 1577320 1375951 8192 4 30575 31185 392262 414408 8192 8 49678 53822 504646 697251 8192 16 78461 80816 771525 1028125 8192 32 88413 110960 922413 797342 8192 64 104718 104268 774429 730113 8192 128 130062 167191 897266 1159203 8192 256 170357 191989 1393689 1310549 8192 512 200445 209889 1337693 1375886 16384 4 29008 34840 483603 398977 16384 8 53982 55465 689298 650236 16384 16 85513 91923 1013998 967242 16384 32 118942 110906 1285923 1258556 16384 64 165128 170219 1298141 1304895 16384 128 184793 178112 1198188 1120746 16384 256 189994 195971 1531496 1565727 16384 512 201495 291364 1603766 1909786 32768 4 30318 36521 465347 427724 32768 8 55498 54766 591522 493161 32768 16 87125 87690 962351 801548 32768 32 122918 131404 1468226 1184197 32768 64 161974 200354 1583821 1147660 32768 128 200660 182196 1508796 1509425